Mattress



FIG. 1 is a front perspective view of a mattress in accordance with afirst embodiment of the invention;

FIG. 2 is a front view of the mattress of FIG. 1;

FIG. 3 is a rear view of the mattress of FIG. 1;

FIG. 4 is a first side view of the mattress of FIG. 1;

FIG. 5 is a second side view of the mattress of FIG. 1;

FIG. 6 is a top view of the mattress of FIG. 1;

FIG. 7 is a bottom view of the mattress of FIG. 1;

FIG. 8 is a front perspective view of a mattress in accordance with asecond embodiment of the invention;

FIG. 9 is a front view of the mattress of FIG. 8;

FIG. 10 is a rear view of the mattress of FIG. 8;

FIG. 11 is a first side view of the mattress of FIG. 8;

FIG. 12 is a second side view of the mattress of FIG. 8;

FIG. 13 is a top view of the mattress of FIG. 8;

FIG. 14 is a bottom view of the mattress of FIG. 8;

FIG. 15 is a front perspective view of a mattress in accordance with athird embodiment of the invention;

FIG. 16 is a front view of the mattress of FIG. 15;

FIG. 17 is a rear view of the mattress of FIG. 15;

FIG. 18 is a first side view of the mattress of FIG. 15;

FIG. 19 is a second side view of the mattress of FIG. 15;

FIG. 20 is a top view of the mattress of FIG. 15;

FIG. 21 is a bottom view of the mattress of FIG. 15;

FIG. 22 is a front perspective view of a mattress in accordance with afourth embodiment of the invention;

FIG. 23 is a front view of the mattress of FIG. 22;

FIG. 24 is a rear view of the mattress of FIG. 22;

FIG. 25 is a first side view of the mattress of FIG. 22;

FIG. 26 is a second side view of the mattress of FIG. 22;

FIG. 27 is a top view of the mattress of FIG. 22; and,

FIG. 28 is a bottom view of the mattress of FIG. 22.

CLAIM The ornamental design for a mattress, as shown and described.